Harvard Moment Tensor Solution

Magnitude 6.7 OFF THE WEST COAST OF NORTHERN SUMATRA
Saturday, January 01, 2005 at 06:25:44 UTC

Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver

January 01, 2005, OFF W COAST OF NORTHERN SUMATRA, MW=6.6

Meredith Nettles

CENTROID, MOMENT TENSOR SOLUTION
HARVARD EVENT-FILE NAME C010105A
DATA USED: GSN
L.P. BODY WAVES: 72S,194C, T= 50
MANTLE WAVES:    67S,154C, T=125
CENTROID LOCATION:
ORIGIN TIME       06:25:47.4 0.1
LAT  4.99N 0.01;LON  92.20E 0.01
DEP  12.0 FIX;HALF-DURATION  5.1
MOMENT TENSOR; SCALE 10**26 D-CM
  MRR=-0.02 0.00; MTT=-0.64 0.01
  MPP= 0.66 0.01; MRT=-0.11 0.02
  MRP=-0.16 0.02; MTP=-0.80 0.01
 PRINCIPAL AXES:
 1.(T) VAL=  1.05;PLG= 6;AZM= 65
 2.(N)       0.00;    79;    186
 3.(P)      -1.05;     9;    334
BEST DOUBLE COUPLE:M0=1.0*10**26
 NP1:STRIKE=110;DIP=80;SLIP=-177
 NP2:STRIKE= 19;DIP=87;SLIP= -10

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